A demon whose true name is Anung Un Rama (the Beast of the Apocalypse), Hellboy was brought to Earth as an infant by Nazioccult. He was discovered by the Allied Forces; amongst them, Professor Trevor Bruttenholm, who formed the United States Bureau for Paranormal Research and Defense (BPRD). In time Hellboy grew to be a large, red-skinned demon with a tail, horns (which he files off, leaving behind the signature circular stumps on his forehead, to make his appearance more "normal"), and an oversized right hand made of stone. He has been described as smelling of dry-roasted peanut. Although a bit gruff, he shows none of the malevolence thought to be intrinsic to demon, and works with other strange creatures in the BPRD. This is said to be because of his upbringing under Professor Bruttenholm, who raised him as a normal boy.